/* reset.css */
h1, h2, body {
  margin: 0;
  padding: 0;
}


.nav-bar {
  display: flex;
  height: 40px;
  line-height: 40px;
  text-align: center;
}

.left, .right {
  width: 80px;
  background-color: #f00;
}

.center {
  flex: 1;
  background-color: #f80;
}
